研华562主板GPIO口设置介绍研华562主板GPIO口设置介绍
研华562主板IO口设置介绍
1、主板GPIO口位置即定义:
GPIO1 Pin 1 ~ Pin 8 current: GPI: 5V 1uA. GPO: 5 V 8 ~ 10 uA. GPIO2 Pin 1, 3, 5, 7 current: GPO (output current only): 5 V, 200 mA Pin 2, 4, 6, 8 current: GPI 5 V, 1 uA. GPO:5 V, 8~ 10 uA GPIO2 Pin 1, 3, 5, 7...
研华562主板GPIO口设置介绍
研华562主板IO口设置介绍
1、主板GPIO口位置即定义:
GPIO1 Pin 1 ~ Pin 8 current: GPI: 5V 1uA. GPO: 5 V 8 ~ 10 uA. GPIO2 Pin 1, 3, 5, 7 current: GPO (output current only): 5 V, 200 mA Pin 2, 4, 6, 8 current: GPI 5 V, 1 uA. GPO:5 V, 8~ 10 uA GPIO2 Pin 1, 3, 5, 7 are for 200mAT high current output use only
SUSI的GPIO口DEMO调试界面
Pin Number
? Get the numbers of input pins and output pins respectively. Each number may vary with the direction of current pins, but the sum remains the same.
MASK
? Choose the mask of interest by selecting or clearing its check box, then clicking "Get Mask".
Direction Change / RW Access
, Choose either "Single Pin" or "Multiple Pin".
, The possible values that the "Single Pin" text box can be set to ranges from 0 to the total number of GPIO pins minus 1.
Single Pin Operation - "IO Write" / "Set Direction"
, Give a value of '1' (output status high / input direction) or '0' (output status low / output direction) to set the pin then click the "IO Write" or "Set Direction" button.
Single Pin Operation - "IO Read"
, Click "IO Read" to get the pin input status.
Multiple Pin Operation - "IO Write" / "Set Direction"
If there are 8 GPIO pins:
, To write the status of GPIO output pins 0, 1, 6 and 7, give the "Multiple Pin" text box the value 11000011. Bit 0 stand for GPIO 0, bit 1 stand for GPIO 1, and so on. To set pin 0 as high, pin 1 as low, pin 6 as high and pin 7 as low, give the "Value" text box the value 01XXXX01, where X stands for a don't care pin. Please simply assign a 0 for don't care pins, e.g. 10000001.
, To set the direction of GPIO pins 0, 1, 6 and 7, give the "Multiple Pin" text box the value 11000011. Again bit 0 stands for GPIO 0, bit 1 stands for GPIO 1, and so on. To set pin 0 as an input, pin 1 as an output, pin 6 as an input and pin 7 as an output, give the "Value" text box with 01XXXX01, where X is for don't care Please simply assign a 0 for don't care pins, e.g. 10000001.
Multiple Pin Operation - "IO Read"
, For example, if you want to read the status of GPIO pins 0, 1, 6 and 7, give the "Multiple Pin" text box the value 11000011. Bit 0 stands for GPIO 0, bit 1 stands for GPIO 1, and so on. Again, if the pin is in status high, the value in the relevant bit of the "Value" text box will be 1. If the pin status is low, the "Value" text box will be 0.
1."IO Write" can only be performed on pins in the output direction. Note!
2."Set Direction" can only be performed on bidirectional pins.
3."IO Read" can get the status of both input and output pins.
Please get the information first in the "MASK" field.
我们的IO口实际使用端口号
GP20 声音切换提示高电平输出
GP21 声音切换提示低电平输出
GP22 呼叫高电平输出
GP23 呼叫地
GP24 清除高电平输出
GP25 清除地
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